Question

Is cooling hot water an exothermic process or an endothermic process?

Answer 1

Exothermic Process

Explanation:

Hot water will lose (give off) heat energy to cool down. Hence, it is an exothermic process.

The amount of heat lost will be

`q = mcDeltaT`

`q` = the heat transferred to the surroundings
`m` = mass of water
`c` = specific heat capacity of water = 1.86J/(g.°C)
`DeltaT` = change in temperature